How do you deal with losing your temper in training?

Right so, basically today I almost lost the head with a guy in training. No, I didn't really have a good reason, but it happened. Anyway to deal with it I faked an injury before we did any randori, made my excuses, and I went home.

Now I feel really bad about faking the injury - I'd be pissed off if someone else did that - but if I'd stayed I might have tried to hurt the guy which would have been worse.

Anyway, how do you guys stay cool as cucumbers when classes start going stupid?

That has happened to me a few times. The main thing I try to do is take deep breaths and talk to myself in my head. I know that I fight better when my head is clear and I'm not mad, so I talk myself into believing that this is part of his strategy, and to beat him I have to stay calm. I know it sounds dumb, but it seems to work for me.

My only issue happened after being kicked low three times, two of them resulting in a giggle from the asshat using my cup for target practice. I managed to focus and set up a real nice right hook to the jaw; then I giggled and wasn't real upset any more.

We have a training session for our fighters called a gauntlet. Where everybody in the room beats on one guy for fifteen minutes. The running gag is that at the end of that we are basicly climbing the walls of the cage to escape the wrath of the guy in the middle.

Do you hide the fact you are taking a time out because you are pissed off, or do you make it clear?

Also, when I do get pissed off, it's usually due to a build up of small things, not usually one big thing. (One thing goes wrong, and I can usually convince myself that it was a freak occurrence, regardless of the evidence.) When someone's being difficult through the whole class, I'm not sure that taking a time out will do any good; unless it's very near the end of the class and I can grit my teeth and hold my tongue when I rejoin the class and the difficulty starts up again.